libsvm problem in make function with windows7 (64 bit)

i tried to run libsvm several times but i failed, i've visualc++

i do this

mex -setup

Welcome to mex -setup.  This utility will help you set up  
a default compiler.  For a list of supported compilers, see  
http://www.mathworks.com/support/compilers/R2011a/win64.html 

Please choose your compiler for building MEX-files: 

Would you like mex to locate installed compilers [y]/n? y

Select a compiler: 
[1] Microsoft Visual C++ 2010 Express in C:\Program Files (x86)\Microsoft Visual Studio 10.0 

[0] None 

Compiler: 1

Please verify your choices: 

Compiler: Microsoft Visual C++ 2010 Express  
Location: C:\Program Files (x86)\Microsoft Visual Studio 10.0 

Are these correct [y]/n? y

*************************************************************************** 
  Warning: MEX-files generated using Microsoft Visual C++ 2010 require 
           that Microsoft Visual Studio 2010 run-time libraries be  
           available on the computer they are run on. 
           If you plan to redistribute your MEX-files to other MATLAB 
           users, be sure that they have the run-time libraries. 
*************************************************************************** 

Trying to update options file: C:\Users\Mero\AppData\Roaming\MathWorks\MATLAB\R2011a\mexopts.bat 
From template:              D:\PROGRA~2\MATLAB\R2011a\bin\win64\mexopts\msvc100freeopts.bat 

Done . . . 

************************************************************************** 
  Warning: The MATLAB C and Fortran API has changed to support MATLAB 
           variables with more than 2^32-1 elements.  In the near future 
           you will be required to update your code to utilize the new 
           API. You can find more information about this at: 
           http://www.mathworks.com/support/solutions/en/data/1-5C27B9/?solution=1-5C27B9 
           Building with the -largeArrayDims option enables the new API. 
************************************************************************** 

>> make

    D:\PROGRA~2\MATLAB\R2011A\BIN\MEX.PL: Error: '..\svm.cpp' not found. 

??? Error using ==> mex at 208
Unable to complete successfully.

Error in ==> make at 5
mex -O -largeArrayDims -I..\ -c ..\svm.cpp

the problem in make , it doesn't work at all , i don't know what to do to make libsvm toolbox work

please help me

Answer 1

[Alok Mani]

You will have to edit the file 'make.m'. Replace all the 'CFLAGS' with 'COMFLAGS'. Worked for me right.

[sudhakar singh]

Thankyou Alok

[Diana Toledo]

Thank you. This solution worked fine for me.

Answer 2

[Walter Roberson]

I notice you are running MATLAB 64. When you installed the compilers, did you specifically install "X64 Compilers and Tools" from Microsoft? Those require a separate step after installing the basic compiler. The link about "supported compilers" gives more information about what you need.

Secondly, the tools believe that svm.cpp should be in the directory immediately above the one you are compiling from, but cannot find it there. Which directory are you compiling in, and how does it relate to the directory that svm.cpp is in? You sometimes need to be cd'd to the source directory itself to be able to "make" the code properly.

[besbesmany besbesmany]

thanks Walter for your concern

i installed VC++ 2010 express it have something called VC++ 2010 express prerequisites x64 , is that the required?

i didn't find "X64 Compilers and Tools"?!

about svm.cpp

i run make from both paths

1- D:\Program Files\MATLAB\R2011a\toolbox\libsvm-3.1\matlab\

2- D:\Program Files\MATLAB\R2011a\toolbox\libsvm-3.1\

and add both paths to matlab

the second path have svm.cpp file

is thiere any suggestions?

thanks alot

[Kaustubha Govind]

What do yo get when you execute the following from the MATLAB prompt:

>> cd

>> !cd

[Walter Roberson]

You need to do a "custom install" on the VC+++ 2010 express

http://msdn.microsoft.com/en-us/library/ms246588%28v=vs.80%29.aspx

You might also need to follow the instructions below, but I haven't seen anyone mention them before:

http://msdn.microsoft.com/en-us/library/9yb4317s%28v=vs.80%29.aspx

I would not add either of those directories to the MATLAB path to start with: I would cd to the second of them and run "make" there and not try to continue until after it had said that it had built the library. Once the library was built, then I would add the path to it to the MATLAB path and proceed on the development of whatever it was you wanted to use libsvm for.

[besbesmany besbesmany]

Dear Kaustubha

i got the following

>> cd

D:\Program Files\MATLAB\R2011a\toolbox\libsvm-3.1\matlab

>> !cd

D:\Program Files\MATLAB\R2011a\toolbox\libsvm-3.1\matlab

Dear Walter Roberson

thier is no custom install for VC++ 2010 experess

the link http://msdn.microsoft.com/en-us/library/ms246588%28v=vs.80%29.aspx

is for visual studio 2005

for link

http://msdn.microsoft.com/en-us/library/9yb4317s%28v=vs.80%29.aspx

i tried to change the Configuration Manager to 64-bit platform , but this step for project inside VC++ and have no relation with matlab

i tried after that to run "make" in matlab but i got the same error

>> make

D:\PROGRA~2\MATLAB\R2011A\BIN\MEX.PL: Error: '..\svm.cpp' not found.

??? Error using ==> mex at 208

Unable to complete successfully.

Error in ==> make at 5

mex -O -largeArrayDims -I..\ -c ..\svm.cpp

what i can do now , i don't know what is the problem , is thiere any missing sw i should install or missing step to run libsvm

please help

thanks

Answer 3

[besbesmany besbesmany]

it works now , i think the error because i didn't add this folder to the matlab path

D:\Program Files\MATLAB\R2011a\toolbox\libsvm-3.1\windows

thanks all

Answer 4

[Pankaj Kumar Behera]

i am using Matlab R2017a in windows 10 version in my comuter.while trying to use LIBSVM package i am facing issues like make.m file when run showing error

make
Building with 'MinGW64 Compiler (C)'.
Error: C:\Users\PANKAJ\Desktop\libsvm-3.22\libsvm-3.22\matlab\make.m failed (line 13)
gcc: error: \-fexceptions: No such file or directory

please suggest me the solutions(i have tried changing CFLAGS to COMPFLAGS but it does not work)